[Radiance-general] illum examples

[Jia Hu]

Yes, it did take me some time to understand this. Thanks.

On Wed, Jul 21, 2010 at 4:57 AM, Thomas Bleicher
<tbleicher at googlemail.com>wrote:

> On Tue, Jul 20, 2010 at 9:58 PM, Jia Hu <hujia06 at gmail.com> wrote:
>
> > I shall change the luminaires material type to "glow" (with maxrad = 0).
> In
> > this case, the shadow rays will only be sent to illum rectangle and not
> be
> > sent to the luminaire (inside illum rectangle).
>
> Jia, keep in mind that any glow inside of the illum box only has the
> purpose of illustrating a light source (fluorescent tube) and the
> shape and the material of the fitting. The light that is emitted from
> the luminaire is already accounted for in the illum material
> definition which is created from an IES file. Therefore you do not
> want your glow to contribute to the illumination of the scene and
> mkillum 'hides' it's light contribution.
>
> Thomas
>
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